Doorlock



J. R. HUGHES Aug. 22, 1933.

DOORLOGK Filed Jan. 17. 1929 IN V EN TOR. @Wy

f di jme B Y A TTORNE Patented Aug. 22, 1933 1,923,149 pooRLocK James. R.. Hughes, South, Bend, Ind., .assigner to.1.he Studebaker Corpflration, vSouthBend, Ind., a Corporation of New Jersey Apsiieauen January 17, 1929, serial Nasaals 13 claims.

This invention relates to door latches and more particularly to means for locking the latch mein- Aber against movement to thereby prevent the unauthorized opening of the door of which the latch mechanism forms a part.`

The principal object of this invention is to provide a rotatable latch operating handle having a hollow shell extendingv into the door in which is mounted a key-controlled member rotatable independent o f the latch handle, and an eccentric formed on Vthe key-controlled member engageable with a locking member for moving the same into engagement with the door for locking the door latch against movement to thereby prevent the unauthorized opening of the door.

A further object is to support the locking member in the-hollow shell so that when the locking member ismoved into engagement with the door,

`the door vlatch handle is constrained against'rotative movement.

The above being among the objects of the present invention, the samev consists of certain features and combinations of parts to be hereinafter described, and then claimed having the with the locking member extended into engagement with the door.

Figure 2' is a sectional view similar to Figure 1 with thelocking member in retracted or inoperative position. I

Figure 3 is lan enlarged section taken on the line 3-3 of Figure 1.

Figure 4 isv an enlarged sectiontaken on the line 1 -4 of Figure 2.

Figure 5 is a sectional view similar to Figure 4,

showing the locking member and its support in turned position.

Figure 6 is a section taken on the line 6 6 of Figure 1.

Referring in detail to the drawing, I have` yshown for the purpose of illustration, a section of `a motor vehicle door comprising an edge face `member l and a front face member illustrated as aA sheet metal plate 2. A portion of the member `l is bent at 90 to form a rear f ace member and to this rear facemember a latch mechanism ndicated at3 is adapted to be secured -in the usual manner.t u n l The Vlatch 'mechanism be of any desired type and is actuatedby means ofl the exterior handle e, having a hollow shell 5 adapted to be inserted through an opening 5 in the face plate '2. A nut 7 is tlneadedly secured on the hollow shell 5 to provide a seat for the spring 8 which is interposed between 'the nut 7 and the escutcheon plate 9 for resiliently holding the handle 4 against longitudinal movement. hollow shell 5 terminates at its inner endl in a shaft 10'! having a square portion l1 adaptedto operate the latch mechanism 3 in any suitable manner. v

A member 12 rotatable independent of the hollow shell. 5, and also in unison therewith, is mounted within'the hollow shell 5 and is held against longitudinal movement by means ofthe pin 13 secured in the sheil 5 and'seating in a groove 14 formed in the member as is clearly shown in Figure 6.

A bushing 1.5 is mounted'in aV recess 1,5* formed in the shell 5 and surrounds the member 12 adjacent its outer end.Y The bushing i5 has slots 17 and 18 in the opposite sides thereof to receive the plungers 19 mounted in the rotatablemember l2 for. a purpose to be hereinafterdescribed.,

An eccentric 2()` which is formed on or isA secured to the inner endof` the rotatalsle' member 12is adapted to be received in a slot 21 formed in the locking member 22 slidably supportedY in the slots 23 formed in the hollow shell 5. The. locking member 22 is adapted 'to'be moved tothe eritended position as shownl in Figure 1 by means of the eccentric 20. and whenjvin that position is received in a slot 24 formed in the edge face member 1 of the door.

When the eccentric is moved tothe position as shownin Figure 2,` the locking Y member 22 is moved tov its retractedposition `and out of engagementwith the door 1.`

Y When the member l2 is in the position shown in Figure 1, the plungers 19 arenorrnallyextended into the slot 18 by means of Vsprings (not shown). To rotate lthe member y12 and thus retract the flocking member 22, avkey 25 is inserted'in the key hole slot A25 formed in the member l2 which will move the plungers 19 out of the slot 18 in which position the member 12 can be rotated independently of the handle Ltand the hollow shell 5. The member l2 can then'vbe rotated 180 degrees, at which time thenplungers c an be extended into the slot 17 by the withdrawal of the key 25 from the slot 25.

' When moved to the last named position, the member 1.2 `and locking member22y will benin the posit-ion shown in Figure 2.` When'the giungere are extended into 'the slot 1'7, the gember 12Mis locked to rotate withfthc handle'lbthus preventing independent rotation of the member 12 relative to the handle 4, and also preventing the locking member 22 from engaging With the door, but instead causing the locking member 22 to rotate with the hollow shell 5 so that the latch mechanism can be operated in the usual manner.

When it is desired to lock the latch mechanism against movement, the key 25 is inserted in the key hole slot 25 so that the plungers 19 will then be moved out of the slot 17 and the rotatable member 12 can be'rotated 189 degrees to move' the locking member 22 into the slot 24 formed in the door 1. When in this position, the key 25 can.

be withdrawn and the plungers which are then moved into the slot 18 will lock the rotatable member 12 with the handle 4 so that the locking member 22 cannot be Withdrawn from the slot 24 in the door l and the latch mechanism isv thus locked against movement.

It will thus be seen that I have provided a simple and eiiicient means for locking the latch mechanism against movement, and while I have shown one embodiment of my invention, it is to be understood that formal changes can be made therein without departing from the spirit and substance of my invention, the scope of Which is commensurate with the appended claims.

What I claim is:

1. In combination with a door structure having an opening in the edge face vthereof and an opening in its side face, a rotatable latch operating handle having a tubular shell extending through said side face opening, a member rotatably mounted within said shell, key operated means for selectively causing said member to rotate with said shell and independently thereof, an eccentric on the concealed end of said member, and a lock member slidably mounted in said shell movable by said eccentric upon the independent rotationl of said member into the opening in the edge face of said door structure to constrain said latch operating handle against rotative movement.

2. Inl combination with a door having a sheet metal edge member provided with an opening therein, a rotatable latch operating handle having a tubular shell mounted in aside face of said door, a lock member extending transversely of and slidably mounted in said shell, and means rotatably mounted in said shell having an eccentric thereon engageable With said lock member for moving said member into the opening in the edge face of said door to constrain said latch operating handle against rotative movement.

3. In combination with a door having a sheet metal edge member provided with an opening therein, a rotatable latch operating handle having a tubular shell provided with aligned slots therein mounted in a side face of said door, a lock member having an opening ytherein slidably mounted in said slots in said shell, akey-controlled member rotatably mounted in said shell, an eccentric on saidfmember extending in the opening in said lock member for moving said lock member into the opening in the edge face of said door to constrain said latch operating handle against rotative movement.

4. In combination with a door having an edge member provided with an opening therein, a rotatable latch operating handle having a tubular shell provided with aligned slots therein mounted in aside face of said door, a lock member mounted in said slots slidable in said shell into and out of engagement withy the opening in the edge face of said door, a key-,controlled member rotatably mounted in said shell, and means on said key-controlled member engageable With said lock member movable by the rotation of said keycontrolled member independently of the rotation of said latch operating handle for moving said lock member into and out of the opening in said door edge member to thereby prevent rotation of said latch operating handle when the lock member is moved to extended position and permit rotation thereof when said lock member is moved to retracted position.

5. In combination with a door having an edge member provided with an opening therein, a rotatable latch operating handle mounted in a side face of said door, a lock member extending transversely of and slidably mounted in said operating handle, and means rotatably mounted in said handle having an eccentric thereon engageable with said lock member for moving said lock member into the opening in the edge member of said door to constrain said latch operating handle against rotative movement, said lock member when in extended position preventing removal of said operating handle from said door.

6. In combination, a vehicle door latch comprising, a latch vsupporting means having a side nange provided with locking bolt keeper means, a latch bolt adapted to be projected through an opening in said flange, and arollback for retracting said latch bolt, a manual member for actuating rollback, a locking bolt, and means for projecting the same into locking engagement with the aforesaid keeper means to prevent rotation of said manual member, said locking bolt being mounted to extend normally in the same direction as the latch bolt and disposed to one side of the latter along the axis of said member. Y '7. The coin'lination with ra latch supporting means having a side flange, of a latch bolt pro- Lectible through flange, latch bolt actuating means, and means carried by said latch bolt actuating means operable into engagement with said side flange to prevent operation of said latch bolt, said means for engaging the side ilange extending normally in the same direction as the latch bolt and being `disposed tovone side of the latter along the axis of vsaid actuating means.

8. Thek combination with a latch supporting means having a side ange, of a latch bolt projectible through said Flange, latch bolt actuating means, and key-operated means operable into locking engagement with said flange to prevent operation of said latch bolt, said key operatedk means extending normally in the same direction as the latch bolt and being disposed to one side thereof along the axis of the latch bolt actuating means.

9. The combination .with a latch supporting means having a side flange, of a latch bolt adapted to be projected through said flange, latch bolt actuating means, and a bolt carried by said latter means operable into locking engagement with said flange to prevent operation of-said latch bolt actuating means, said lastnamed bolt being mounted to extend normally in the same direction as therlatch bolt and located to one side of the plane thereof along the axis of said actuating means.

l0. The combinationivith a latch supporting means having a side flange, of a latch bolt adaptved to be projected through said ilange, latch bolt actuating means including a tubular handle shank, a locking bolt carried by said shank, and key-operated means in said shank for projectlill) vso ing said latter bolt into locking engagement with said side ange to prevent operation of the latch operating mechanism, the locking bolt being mounted to extend normally in the same direc- Y tion as the latch bolt and disposed to one side of the latter along the axis of said shank.

11. The combination with a latch supporting means having a side flange, of a latch bolt adapted to be projected through said flange, latch bolt actuating means including a tubular handle shank, a transversely reciprocable bolt disposed in said shank, and key-operated means in said shank for reciprocating said latter bolt into and out of locking engagement with said side flange, the latter bolt being mounted to extend normally in the same direction as the latch bolt and being spaced therefrom along the axis of said shank.

12. The combination with a latch supporting means mounted on one face of a vehicle door and having a side flange, of a latch bolt projectible through said flange, latch bolt actuating means,

and means carried by said latch bolt actuating means and engagable With said side flange for preventing operation of said latch bolt actuating means, said means engageable with the side iiange extending normally in the same direction as the latch bolt and spaced therefrom in the direction of the axis of saidactuating means.

13. The combination with a latch supporting means mounted on one face of a vehicle door and having a side ange, of a latch bolt projectible 

